I'd like to see the show return in the same soap opera format and recreation of the iconic sets. It should just pick up in the present day with a new generation, new stories, and maybe a return of interested original actors, reprising their now elderly characters, rather than replacing them. The original format made it a much more personal show, the visaul style of the soap format, and the ever present troup of actors that play many parts. After a time, those actors on the original show began to feel almost like family.
Since after the 1840 story line, and the return to normal time in 1970, events after 1840 could have been altered in many ways not immediately noticeable--which could have opened up more story possibilities in all time lines, had the show been allowed to continue.